徐律等

    [摘要] 目的 评价不同计划靶体积(PTV)外扩界在三维适形放疗治疗复发性宫颈癌中的临床效果。 方法 随机选取温州市中心医院2013年1～12月收治的45例复发性宫颈癌患者作为研究对象，根据PTV外扩边界剂量不同分为三组，分别为PTV 0.5 cm组15例、PTV 1.0 cm组(常规对照组)15例、PTV 1.5 cm组15例，比较三组患者疗效及副作用发生情况。 结果 PTV 1.5 cm组患者放疗后总有效率(93.33%)明显高于常规对照组(66.67%)和PTV 0.5 cm组(60.00%)；PTV 1.5 cm组患者放射性直肠炎发生率(0.00%)明显低于常规对照组(26.67%)和PTV 0.5 cm组(26.67%)，差异有统计学意义(P 0.05)。 结论 不同PTV外扩界在三维适形放疗治疗复发性宫颈癌中具有一定的差异性，PTV 1.5 cm临床总有效率更高，可明显降低放射性直肠炎的发生率，减少副作用的发生，属于最为安全的剂量范围，值得临床推广应用。

    [关键词] 计划靶体积；三维适形放疗；复发性；宫颈癌；临床效果

    [中图分类号] R737.33 [文献标识码] A [文章编号] 1673-7210(2015)05(b)-0082-04

    Assessment on clinical effect of different PTV outside enlarge community of three-dimensional conformal radiotherapy in the treatment of recurrent cervical cancer

    XU Lü WU Qishu LIN Aidi

    Department of Gynecologic Oncology， Central Hospital of Wenzhou City， Zhejiang Province， Wenzhou 325000， China

    [Abstract] Objective To evaluate clinical effect of different PTV outside enlarge community of three-dimensional conformal radiotherapy in the treatment of recurrent cervical cancer. Methods 45 cases of recurrent cervical carcinoma in Central Hospital of Wenzhou City from January to December 2013 were randomly selected as study objects. They were divided into PTV 0.5 cm group (15 cases) ......